Gwent's Police and Crime Commissioner and Gwent Police's former chief constable will appear before the Home Affairs Select Committee in London later.
Both parties will give their side of events that led to Mrs Napier's departure at the meeting in Westminister this afternoon.
More top news
A woman from Abergele, north Wales has launched an appeal to raise funds to fly her injured mother home to Wales from war-torn Syria.
A young man from south Wales who's battled depression says there's a long way to go in tackling the stigma surrounding men's mental health.
Generally dry to start the day but turning increasingly cloudy this afternoon with the heaviest outbreaks in the north.